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Eraser MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Eraser MCP or direct API to generate diagrams, search workspace content, update documents, and export diagrams through natural language.

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Dcr Oauth

Eraser MCP is a workspace for creating and managing technical diagrams and structured documents. It helps teams organize, version, and export diagrams with collaboration-focused tooling.

42 Tools

Try Eraser MCP now

Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
Eraser MCP
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TOOLS

Supported Tools

Every Eraser MCP action and event your agent gets out of the box.

Add or remove template or reference

Attach or detach an EXISTING file as a template (style anchor) or reference (terminology/concept anchor) of a preset.

Create diagram

PREFERRED for creating a diagram from a natural-language prompt — Eraser's AI picks the diagram type, generates the DSL, and renders it.

Create document

PREFERRED for populating a document from a natural-language prompt — Eraser's AI generates the markdown.

Create file

Create an empty file, or duplicate an existing file when sourceFileId is provided.

Create folder

Create a new folder.

Create preset

Create a new preset (the team-level container for AI styling: templates, references, and rules).

Create template or reference

Create a new template (style anchor) or reference (terminology/concept anchor) file and, when `presetId` is provided, attach it to that preset in a single call.

Delete diagram

Delete a diagram from a file.

Delete document

Clear a file's document body to an empty markdown document.

Delete file

Archive a file.

Delete folder

Delete a folder.

Delete preset

Delete a preset.

Export diagram

Render a canvas diagram to PNG or JPEG and return a temporary image URL.

Export document

Export a file's markdown document body as a downloadable artifact.

Export file

Returns the Eraser file URL for PDF export.

Get diagram

Fetch a diagram's metadata and DSL/JSON code.

Get document

Fetch the full markdown body of a file's document.

Get file

Fetch a file's metadata, document outline (headers), and the list of diagrams in it.

Get folder

Fetch a folder by id.

Get me

Fetch the current user, active team, and team memberships.

Get preset

Fetch a preset including its rules, templates, and references.

Get template or reference

Fetch a template/reference's metadata, document outline, and diagram list.

List diagrams

List the diagrams contained in a file.

List files

List files in the team workspace, optionally scoped to a folder.

List folders

List folders.

List presets

List the team's presets.

List teams

List the teams the current user belongs to (OAuth only).

Manually create diagram

ADVANCED — most callers should use create_diagram instead.

Manually create document

ADVANCED — most callers should use create_document instead.

Manually update diagram

ADVANCED — most callers should use update_diagram instead.

Manually update document

ADVANCED — most callers should use update_document instead.

Manually update file

Replace a file's document markdown and/or diagram code in one call.

Publish template or reference

Publish a new version of a template/reference file.

Search

Full-text and semantic search across files or diagrams.

Select team

Set the active team for the session when the user belongs to multiple teams (OAuth only).

Update diagram

USE THIS for any user request that describes the change in natural language — verbs like 'add', 'remove', 'change', 'rename', 'recolor', 'make it more X', etc.

Update document

USE THIS for any user request that describes the change in natural language — verbs like 'add a section', 'rewrite the intro', 'fix the typo', 'remove the deprecated paragraph', etc.

Update file

Update file metadata (title, folder, sharing).

Update folder

Rename or move a folder, or bulk-apply a link-sharing setting to every file inside it (recursively).

Update preset

Rename a preset or update its metadata (`name`, `description`, `isDefault`).

Update rules

Add, update, or remove rules on a preset in a single batched call.

Update template or reference

Rename a template or reference file.

SETUP GUIDE

Connect Eraser MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcp
Install the Composio SDK for Python or TypeScript
2

Initialize Client and Create Tool Router Session

typescript
import { Composio } from '@composio/core';

const composio = new Composio({ apiKey: 'your-api-key' });
const session = await composio.create('your-user-id');
console.log(`Tool Router session created: ${session.mcp.url}`);
Import and initialize the Composio client, then create a Tool Router session for Eraser MCP
3

Connect to AI Agent

typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText } from 'ai';

const client = await createMCPClient({
  transport: {
    type: 'http',
    url: session.mcp.url,
    headers: {
      'x-api-key': 'your-composio-api-key',
    },
  },
});

const tools = await client.tools();
const { text } = await generateText({
  model: openai('gpt-4o'),
  tools,
  messages: [{
    role: 'user',
    content: 'YOUR_SPECIFIC_PROMPT_HERE'
  }],
  maxSteps: 5,
});

console.log(`Agent: ${text}`);
Use the MCP server with your AI agent (Anthropic Claude or Mastra)
SETUP GUIDE

Connect Eraser MCP API Tool with your Agent

1

Install Composio

typescript
npm install @composio/openai
Install the Composio SDK
2

Initialize Composio and Create Tool Router Session

typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';

const composio = new Composio({
  provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');
Import and initialize Composio client, then create a Tool Router session
3

Execute Eraser MCP Tools via Tool Router with Your Agent

typescript
const tools = session.tools;
const response = await openai.responses.create({
  model: 'gpt-4.1',
  tools: tools,
  input: [{
    role: 'user',
    content: 'YOUR_SPECIFIC_PROMPT_HERE'
  }],
});
const result = await composio.provider.handleToolCalls(
  'your-user-id',
  response.output
);
console.log(result);
Get tools from Tool Router session and execute Eraser MCP actions with your Agent

Why Use Composio?

AI Native Eraser MCP Integration

  • Supports both Eraser MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable tool execution
  • Rich coverage for reading, writing, and querying your Eraser MCP data

Managed Auth

  • Built-in OAuth handling with automatic token refresh and rotation
  • Central place to manage, scope, and revoke Eraser MCP access
  • Per user and per environment credentials instead of hard-coded keys

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Eraser MCP
  • Scoped, least privilege access to Eraser MCP resources
  • Full audit trail of agent actions to support review and compliance
FRAMEWORKS

Use Eraser MCP with any AI Agent Framework

Choose a Framework you want to connect Eraser MCP with

ChatGPT logo

ChatGPT

Use Eraser MCP with ChatGPT

Claude Cowork logo

Claude Cowork

Use Eraser MCP with Claude Cowork

Hermes logo

Hermes

Use Eraser MCP with Hermes

FAQ

Frequently asked questions

Yes, Eraser MCP requires you to configure your own Dcr Oauth credentials. Once set up, Composio handles secure credential storage and management for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Eraser connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

When you connect a Eraser account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Eraser as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Eraser. If Eraser lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Eraser at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Eraser connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

Composio's free plan includes 100,000 tool calls per month with no credit card, which covers most personal Eraser use. Paid plans add higher limits and team features. Your Eraser plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Eraser accounts).

With Composio, you connect Eraser once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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